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Chinese Journal of High Pressure Physics  > 1999  >  13(4): 290-294 .
YANG Chuan-Lu, WANG Rong, WANG Fan-Hou, ZHU Zheng-He, WANG Ming-Da, ZHENG Yong-Ming, TANG Yong-Jian, ZHENG Zhi-Jian, ZHAO Yong-Kuan. Equation of State for Gas N2 at Low Temperature and High Density[J]. Chinese Journal of High Pressure Physics, 1999, 13(4): 290-294 . doi: 10.11858/gywlxb.1999.04.009
Citation: YANG Chuan-Lu, WANG Rong, WANG Fan-Hou, ZHU Zheng-He, WANG Ming-Da, ZHENG Yong-Ming, TANG Yong-Jian, ZHENG Zhi-Jian, ZHAO Yong-Kuan. Equation of State for Gas N2 at Low Temperature and High Density[J]. Chinese Journal of High Pressure Physics, 1999, 13(4): 290-294 . doi: 10.11858/gywlxb.1999.04.009
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Equation of State for Gas N2 at Low Temperature and High Density

doi: 10.11858/gywlxb.1999.04.009
  • 1.

    Institute of Atomic and Molecular Engineering, Sichuan University, Chengdu 610065, China;

  • 2.

    Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, China

More Information
  • Corresponding author: YANG Chuan-Lu
  • Received Date: 08 Dec 1998
  • Rev Recd Date: 24 May 1999
  • Issue Publish Date: 05 Dec 1999
    Abstract
  • The present paper has calculated the p-V-T of gas N2 at temperature 150 K and density not more than 2.548c using Beattie-Bridgeman (BB) equation of state and its modification Benedict-Webb-Rubin (BWR). It is surprisingly found that the BWR equation of state is accurate at such low temperature and rather high density. For example, the error is not more than 4.50% until 100 00 MPa of pressure, however, BB equation of state is absolutely invalid at the same condition. Therefore, BWR equation of state can represent the behavior of gas N2 at or near the critical state as well as high density state.

     

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